Door holder, check, and closer.



No. 832,603. I PATENTED OCT. 9, 1906. J. C. FRITTS.

DOOR HOLDER, CHECK, AND CLOSER.

APPLICATION FILED MAR.'I.1906.

v ,2 SHEETS-SHEET 1 witmeooco awbewtpz JCEW T/L No. 832,603. PATENTED0016,1906.

- J. 0. FRITTS.

DOOR HOLDER, CHECK, AND CLOSER.

APPLICATION FILED MAR.7. 1906.

2 SHEETS-SHEET 2.

UN ITED I PATENT OFFICE.

Specification of Letters Patent. Application filed March 7, 1906. SerialIla-304.619.

Patented Oct. 9, 1906.

1'0 all whom it mag concern:

Be it known that I, JAMEs O. FRITTS, a

citizen of the United States, residing at-Newark, Essex county, State ofNew Jersey, have invented certain new and useful Im rovements in DoorHolders, Checks, and O osers,

of which the following is a full, clear, and ex act description.

My invention relates to a mechanism adapted to serve the combinedpurposes of a door holder, check, and closer.

The object of the invention is to provide a simple construction foraccomplishing the functions of holding a door closed or open andchecking its opening or closing move-.

ment. I have endeavored to avoid the use of-numerous or complicatedparts, so that the construction may be manufactured economically andreadily set up or adjusted and which will not be likely to get out oforder.

The form illustrated in the accompanying drawings and described in thefollowing specification is particularly adapted to use on doors ofrailway-cars. It will be obvious, however, that the construction is notlimited to such use.

Figure 1 is a plan view of mechanism embodying the improvements of myinvention with the door in closed position. Fig. 2 is a like view of themechanism with the *door open. Fig. 3 is a front view of the mechanismwith the parts in the closed position. Fig. 4 isa detail view of thespring device. Fig. 5 is a plan view of another construction embodyingmy invention.

1 indicates the door, which is hinged to the door frame or casing at 2.

3 is one of the levers, ivoted at 4 to the bracket 5, which is attacedto the door. 6 is the other lever, which is pivoted at 7 to thebracket 8, which is attached to the door-casing. The two levers 3 and 6are pivotally connected together at 9. The lever 3 has a projection 10,and the lever 6 has a projection 11, to which the. opposite ends of thespring device 12 are attached at points 13 and 14. In the preferred formthis s ring device is made up of a coiled spring p aced undercompression between the cap-pieces 15 and 16. The rods 17 and 18 areattached, res ectively, to the cap-pieces 16 and 15, and sac of saidrods passes freely through the respective op The head of t e rod 18 isreferably slotted and connectedto the T-s aped pivot-post 14. The end ofthe rod 17 is threaded and osite cap-pieces 15 and 16.v

passes through the 0st 19 on the extension 10. The tension 0 the springis regulated by means of the adjusting-nut 21 and washer 20 on theprojecting screw-threaded end of the rod 17 and bearing against theouter face of the post 19. The rod 18 may be readily connected to theextension 11 by meansof a T-and-slot construction.

When the door is closed, the end of the extension 1 1 preferably restsagainst the yield 23 may be provided for f ing stop 22. A stop the doorin its opened position. Thespiing device holds the door in eitherposition by reason of the relative osition and proportions of the parts.n the modification shown in Fig. 5 it is obvious that the spring devicemight consist simply of a coiled spring having its opposite endsattached at the points 13 and 14 and placed under tension instead ofcompression/as in the other form of device shown. The compression formis preferred, however, as it is more durable.

In all positions of the door and mechanism the distances between thepoints 2 and 4, 2

and 7 4" and 9, and 7 and 9 are fixed. The

lines connecting the points 2, 4, 9, 7, and .2

present a quadrilateral when the door is o ened to stand, for instance,at a right ang e to the lintel of the door and lie in nearly a 7straight linewhen the door is closed, the

point 4, however, having passed inside of the ine connecting the points2 and 9. When the door is opened, the action of the s ring device is todraw the point 14 towar the point 13. The result is a pressure whichholds the door a ainst the stop 23. As the door is closed a cad-point isreached when the oints 13, 9, and 14 are in alinement. At t 's pointthere is no effective pressure of the'spring, so that the door ischecked in its movement, toward the closing osition. As the door assesby this chec 'ng positio into the c osed position the point 14 passrsinside the line connecting the points 13 and 9, so that the action ofthe spring is to draw the point '14 toward the door-casing. Theeffective pressure of the spring for this closing action, however,decreases, as the door reaches its closed position, since the points 13and 4 again approach each other, but on the inside of the center line.This has atendency to draw the oint 4 inside the line of points2 and 7and c oses the door. When the door is closed, the spring is expanded andresistance to the ening of the door. When the door is open, t e springis also expanded and under little pressure, but exerts its pressure atthe most efiective angle, so that the door is held securely against thestop 23.

What I claim is 1. A combined door holder, check and closer comprisingtwo levers adapted to be respectively connected to adoor and to thecasing, a common pivotal connection for said levers, an extension fromeach lever beyond the line connecting its two pivot ends and a sprlndevice connecting sa1d extensions.

2'. n a combined doorholder, check and closer, two levers of unequallength pivotally connected to ether and adapted respectively to bepivotalfi connected to a door and doorcasingand a spring deviceconnected to each of said levers at points on opposite sides of saidlevers when the parts are in the closed position.

3. In a'device of the character described,

. two bracketsadapted to be respectively atta'ched to a door anddoor-casing, a lever pivoted to each of saidbrackets, a commonpivotal-conne'ction for said levers, and a spring device-connected withsaid door-lever at one sideof theline joining its pivoted ends, and

ever, at one sideof'the extension of the line joining its ivotedcenters.

5. In a evice of the character described,

brackets adapted to be respectively attached to'a door and door caslevers pivoted to said'brackets and pivote to each otherfand acompression-spring device connecting said levers comprising a pair ofcaps, a coiled spring, the ends of said spring abutting against-said"caps, and a air of-rods, each of said rods'passing throng one cap and,being secured to the opposite cap.

'6. In'a device'of he-character described,

I brackets adapted to be secured to a door and larldisposed extensionsprovided with vertlca ly-dlsposed posts a spring device conrespectively,levers pivoted 'thereto'an' to each other and having angunecting saidposts and a spring adjusting member com rising an arm projectingthroughone oi said posts and an adjustingnut for said arm. v

7. In a construction of the character described, a'door-casing, a hingeddoor, a lever pivoted to said casing, a longer lever pivoted to saiddoor between the polnt of support of said first lever and the axis ofthe door when the parts are in the closed position, said levers beingpivoted together and a spring device connectingsaid levers.

8. In a construction of the character described, a door-casing, a hingeddoor, a lever pivoted to said casing, a longer'lever'pivoted to saiddoor between the o1nt of support of said first lever and the axis of thedoor when the'parts are in the closed position, said-levers beingpivoted together and a spring device connecting said levers, one of saidlevers having an extension and a stop ad-a ted to be enga is entirelyclosed.

9. In a .do0rcl0ser, two levers adapted to be (pivotallyconnectedrespectively to a door an door-casing, said levers being pivotedtogether and each having a vertical post disposed eccentrically of thecommon-pivot and a coiled'spring having its opposite ends connected tosaidposts.

ed by said extension before t e door 10. In a construction of-thecharacter'd'escribed, the combination of a door-casing, a

hinged door, two levers of unequal length pivotally connected together,the shorter lever being connected to the door-casing, the

other lever being connected to the door between the -door-casingconnection and the door-hinge, an extension carried by one of saidlevers, and a spring normally holding said levers with said extension 1nengage-' inent with the door-casing.

11. In a door-closer, a pair of levers pivotally connected together andpivotally con-- nected to a door and doorcasing respectively, and ahorizontally-disposed compression-spring device connecting said levers.

12. In a door-closer, a pair of levels pivotally connected together andpivotally con nected to a door and door-casing respectively, ahorizontally disposedcompressionspring device connecting said levers,and

means for'adjusting the compression of said spring device. 7

JAMES C. FRITTS- Witnesses:

: L. VREELAND,

Ro'nr. S. ALLYN.

